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| Material of Mechanical Seals | ||||
|---|---|---|---|---|
| Type | Rotary Ring | Stationary Ring (Seat) | Elastomers (Rubber) | Remark |
| Carbon-Ceramic-NBR (CA/CE/NBR) |
Carbon | Ceramic | NBR |
|
| SiC-SiC-Viton (S/S/V) |
Silicon carbide | Silicon carbide | Viton | |
| Carbon-SiC-Viton (CA/S/V) |
Carbon | Silicon carbide | Viton | |
| SiC-SiC-NBR (S/S/NBR) |
Silicon carbide | Silicon carbide | NBR | |
| SiC-SiC-EPDM (S/S/EP) |
Silicon carbide | Silicon carbide | EPDM | |
| SiC-SiC-MVQ (S/S/MVQ) |
Silicon carbide | Silicon carbide | Silica gel | |
| TC-TC-Viton (TC/TC/V) |
Tungsten carbide | Tungsten carbide | Viton | |
R32 thread button bits are widely used in drifting, tunneling, bench drilling, and production drilling. They are particularly effective in medium to hard rock formations and are compatible with light-duty hydraulic and pneumatic rock drilling rigs.
The Retrac Drop Center design features a concave face that helps guide the bit straight during drilling operations. It significantly improves flushing, aids in faster rock chip removal, and makes withdrawing the drill bit easier, especially in fractured rock structures.
These drill bits are manufactured using premium-grade alloy steel bodies coupled with high-wear-resistant tungsten carbide buttons. Specialized heat treatment processes ensure the high fatigue strength and impact resistance required for demanding drilling applications.
The 14-button configuration is optimized to distribute impact energy evenly across the rock face. This balanced design leads to high penetration rates, cleaner hole profiles, and minimized stresses on the tool body, preventing premature failures.
To maximize tool lifetime, maintain adequate flushing pressure, check for correct rotation speed, and inspect the bit regularly. Regrinding the carbide buttons when flat spots begin to appear prevents body wear and maintains optimum drilling speed.
